summaryrefslogtreecommitdiffstats
path: root/commands/net.c
blob: 73da615b0db6a12fb50f59f82045d0acdd431f6d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/**
 * @file
 * @brief tftp, rarpboot, dhcp, nfs, cdp - Boot support
 */

#include <common.h>
#include <command.h>
#include <environment.h>
#include <driver.h>
#include <net.h>
#include <fs.h>
#include <fcntl.h>
#include <errno.h>
#include <libbb.h>
#include <libgen.h>

static int netboot_common (proto_t, cmd_tbl_t *, int , char *[]);

static void netboot_update_env (void)
{
	struct eth_device *eth_current = eth_get_current();
	char tmp[22];

	if (NetOurGatewayIP)
		dev_set_param_ip(eth_current->dev, "gateway", NetOurGatewayIP);

	if (NetOurSubnetMask)
		dev_set_param_ip(eth_current->dev, "netmask", NetOurSubnetMask);


	if (NetOurHostName[0])
		setenv ("hostname", NetOurHostName);

	if (NetOurRootPath[0])
		setenv ("rootpath", NetOurRootPath);

	if (NetOurIP)
		dev_set_param_ip(eth_current->dev, "ipaddr", NetOurIP);

	if (NetServerIP)
		dev_set_param_ip(eth_current->dev, "serverip", NetServerIP);

	if (NetOurDNSIP) {
		ip_to_string (NetOurDNSIP, tmp);
		setenv ("dnsip", tmp);
	}
#ifdef CONFIG_BOOTP_DNS2
	if (NetOurDNS2IP) {
		ip_to_string (NetOurDNS2IP, tmp);
		setenv ("dnsip2", tmp);
	}
#endif
	if (NetOurNISDomain[0])
		setenv ("domain", NetOurNISDomain);

#if defined CONFIG_NET_SNTP && defined CONFIG_BOOTP_TIMEOFFSET
	if (NetTimeOffset) {
		sprintf (tmp, "%d", NetTimeOffset);
		setenv ("timeoffset", tmp);
	}
#endif
#if defined CONFIG_NET_SNTP && defined CONFIG_BOOTP_NTPSERVER
	if (NetNtpServerIP) {
		ip_to_string (NetNtpServerIP, tmp);
		setenv ("ntpserverip", tmp);
	}
#endif
}

static int do_tftpb (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	return netboot_common (TFTP, cmdtp, argc, argv);
}

static const __maybe_unused char cmd_tftp_help[] =
"Usage: tftp <file> [localfile]\n"
"Load a file via network using BootP/TFTP protocol.\n";

U_BOOT_CMD_START(tftp)
	.maxargs	= 3,
	.cmd		= do_tftpb,
	.usage		= "Load file using tftp protocol",
	U_BOOT_CMD_HELP(cmd_tftp_help)
U_BOOT_CMD_END

/**
 * @page tftp_command tftp
 *
 * Usage is: tftp \<filename\> [\<localfilename\>]
 *
 * Load a file via network using BootP/TFTP protocol. The loaded file you
 * can find after download in you current ramdisk. Refer \b ls command.
 *
 * \<localfile> can be the local filename only, or also a device name. In the
 * case of a device name, the will gets stored there. This works also for
 * partitions of flash memory. Refer \b erase, \b unprotect for flash
 * preparation.
 *
 * Note: This command is available only, if enabled in the menuconfig.
 */

#ifdef CONFIG_NET_RARP
static int do_rarpb (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	return netboot_common (RARP, cmdtp, argc, argv);
}

U_BOOT_CMD_START(rarpboot)
	.maxargs	= 3,
	.cmd		= do_rarpb,
	.usage		= "boot image via network using rarp/tftp protocol",
	U_BOOT_CMD_HELP("[loadAddress] [bootfilename]\n")
U_BOOT_CMD_END
#endif /* CONFIG_NET_RARP */

/**
 * @page rarp_command rarp
 *
 * Usage is: FIXME
 *
 * Load a file via network using rarp/tftp protocol. FIXME: Where to find it
 * after loading?
 * @note This command is available only, if enabled in the menuconfig.
 */

#ifdef CONFIG_NET_DHCP
static int do_dhcp (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	int size;

	if ((size = NetLoop(DHCP)) < 0)
		return 1;

	/* NetLoop ok, update environment */
	netboot_update_env();

	return 0;
}

U_BOOT_CMD_START(dhcp)
	.maxargs	= 1,
	.cmd		= do_dhcp,
	.usage		= "invoke dhcp client to obtain ip/boot params",
U_BOOT_CMD_END

#endif	/* CONFIG_NET_DHCP */

#ifdef CONFIG_NET_NFS
static int do_nfs (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	return netboot_common(NFS, cmdtp, argc, argv);
}

static const __maybe_unused char cmd_nfs_help[] =
"Usage: nfs <file> [localfile]\n"
"Load a file via network using nfs protocol.\n";

U_BOOT_CMD_START(nfs)
	.maxargs	= 3,
	.cmd		= do_nfs,
	.usage		= "boot image via network using nfs protocol",
	U_BOOT_CMD_HELP(cmd_nfs_help)
U_BOOT_CMD_END

#endif	/* CONFIG_NET_NFS */

int net_store_fd;

static int
netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	int   rcode = 0;
	int   size;
	char  *localfile;
	char  *remotefile;

	if (argc < 2) {
		printf ("Usage:\n%s\n", cmdtp->usage);
		return 1;
	}

	remotefile = argv[1];

	if (argc == 2)
		localfile = basename(remotefile);
	else
		localfile = argv[2];

	net_store_fd = open(localfile, O_WRONLY | O_CREAT);
	if (net_store_fd < 0) {
		perror("open");
		return 1;
	}

	safe_strncpy (BootFile, remotefile, sizeof(BootFile));

	if ((size = NetLoop(proto)) < 0) {
		rcode = size;
		goto out;
	}

	/* NetLoop ok, update environment */
	netboot_update_env();

out:
	close(net_store_fd);
	return rcode;
}

#ifdef CONFIG_NET_CDP

static void cdp_update_env(void)
{
	char tmp[16];

	if (CDPApplianceVLAN != htons(-1)) {
		printf("CDP offered appliance VLAN %d\n", ntohs(CDPApplianceVLAN));
		VLAN_to_string(CDPApplianceVLAN, tmp);
		setenv("vlan", tmp);
		NetOurVLAN = CDPApplianceVLAN;
	}

	if (CDPNativeVLAN != htons(-1)) {
		printf("CDP offered native VLAN %d\n", ntohs(CDPNativeVLAN));
		VLAN_to_string(CDPNativeVLAN, tmp);
		setenv("nvlan", tmp);
		NetOurNativeVLAN = CDPNativeVLAN;
	}

}

static int do_cdp (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	int r;

	r = NetLoop(CDP);
	if (r < 0) {
		printf("cdp failed; perhaps not a CISCO switch?\n");
		return 1;
	}

	cdp_update_env();

	return 0;
}

U_BOOT_CMD_START(cdp)
	.maxargs	= 1,
	.cmd		= do_cdp,
	.usage		= "Perform CDP network configuration",
	U_BOOT_CMD_HELP("[loadAddress] [host ip addr:bootfilename]\n")
U_BOOT_CMD_END

#endif	/* CONFIG_NET_CDP */

static int do_ethact (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
	struct eth_device *edev;

	if (argc != 2) {
		u_boot_cmd_usage(cmdtp);
		return 1;
	}

	edev = eth_get_byname(argv[1]);
	if (edev)
		eth_set_current(edev);
	else {
		printf("no such net device: %s\n", argv[1]);
		return 1;
	}

	return 0;
}

static const __maybe_unused char cmd_ethact_help[] =
"Usage: ethact /dev/ethx\n";

U_BOOT_CMD_START(ethact)
	.maxargs	= 3,
	.cmd		= do_ethact,
	.usage		= "set current ethernet device",
	U_BOOT_CMD_HELP(cmd_ethact_help)
U_BOOT_CMD_END